Short-Term Financing (Details) (USD $)	3 Months Ended			9 Months Ended
	Mar. 31, 2015		Mar. 31, 2014	Mar. 31, 2015		Mar. 31, 2014	Dec. 31, 2014	Jun. 30, 2014
Short-term Debt [Line Items]
Effective Income Tax Rate Reconciliation, Percent	33.70%		34.40%	33.70%
Credit agreement period				364 days
Aggregate amount of commercial paper issuable under the short-term commercial paper program				$ 7,500,000,000
Maturities of commercial paper range				overnight to up to 364 days
Obligation under commercial paper borrowing	0	[1]		0	[1]			2,173,000,000	[1]
Maturities of short-term funding agreements				overnight to up to five business days
364-Day Credit Agreement [Member]
Short-term Debt [Line Items]
Maximum borrowing capacity under credit facilities							2,250,000,000
Expiration date of credit facilities				Jun. 01, 2015
Credit Facility Expiring In June 2015 [Member]
Short-term Debt [Line Items]
Maximum borrowing capacity under credit facilities							3,250,000,000
Term of credit				5 years
Expiration date of credit facilities				Jun. 01, 2019
Line of credit facility potentially available increase in maximum borrowing capacity				500,000,000
Credit Facility [Domain]
Short-term Debt [Line Items]
Short-term Debt							0
Credit Facility Expiring In June 2018 [Member]
Short-term Debt [Line Items]
Maximum borrowing capacity under credit facilities							2,000,000,000
Term of credit				5 years
Expiration date of credit facilities				Jun. 01, 2018
Short-Term Commercial Paper Program [Member]
Short-term Debt [Line Items]
Short-term Debt, Average Outstanding Amount	1,000,000,000		700,000,000	2,400,000,000		2,400,000,000
Weighted average interest rates	0.10%		0.10%	0.10%		0.10%
Commercial Paper Weight Average Maturity	1 day			2 days
Reverse Repurchase Agreements [Member]
Short-term Debt [Line Items]
Maximum borrowing capacity under credit facilities							3,250,000,000
Short-term Debt								0
Short-term Debt, Average Outstanding Amount	$ 93,000,000		$ 162,100,000	$ 423,200,000		$ 366,000,000
Weighted average interest rates	0.70%		0.90%	0.50%		0.60%

[1] As of June 30, 2014, $2,015.8 million of short-term marketable securities and $183.8 million of cash and cash equivalents are related to the Company's outstanding commercial paper borrowings (see Note 9).